Test 1
Log in as admin
Go to edit profile page
Change user picture and make sure it gets updated
Test 2
Log in as admin
Edit other user profile
Change user picture and make sure it gets updated
Test 3
Log in as admin
Create a new user and make sure to add user picture while creating new account
Make sure user picture is added to new user profile
Test 4
Log in as student
edit profile and change user picture
make sure it gets updated.